48-Port 10/100/1000Mbps port and 4 10G SFP+ Managed Gigabit Switch- 19-inch standard rack-mount width. 1U height. Switching Capacity 176 Gbps Forwarding Method, Store-and-forward- MAC Address Table Size: Up to 16K Entries per device- MAC Address Update: Up to 512 static MAC entries- Virtual Stacking ? D-Link Single IP Management, Up to 32 units per Virtual Stack- VLAN, Double VLAN (Q-in-Q) L3 Features ? Max 1024 ARP entries, Supports 255 static ARP entries Gratuitous ARP- IPv6 Neighbour Discovery- 16 IP Interfaces- Quality of Service options, CoS, Bandwidth Control, Queue Handling.- AAA, 802.1X, MAC-based Access Control, Web-based Access Control- Management ?Web based GUI (supports IPv4/v6) Command Line Interface (CLI) Maximum PoE Budget 370W- MTBF 465,240 hours- Acoustic 45.9dB(A) Weight 2.4kg Dimensions 440𴢪x44mm